vhost scsi: Convert to SPDX identifier

use SPDX-License-Identifier instead of a verbose license text
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Link: https://lore.kernel.org/r/20210821123320.734-1-caihuoqing@baidu.comSigned-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

drivers/vhost/scsi.c

+// SPDX-License-Identifier: GPL-2.0+
 /*******************************************************************************
  * Vhost kernel TCM fabric driver for virtio SCSI initiators
  *
  * (C) Copyright 2010-2013 Datera, Inc.
  * (C) Copyright 2010-2012 IBM Corp.
  *
- * Licensed to the Linux Foundation under the General Public License (GPL) version 2.
- *
  * Authors: Nicholas A. Bellinger <nab@daterainc.com>
  *          Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  ****************************************************************************/
 
 #include <linux/module.h>